penberthy



' (No Model.) 2 Sheets-Sheet 1 W. PENBBRTHY. ADJUSTABLE HANDLE BAR FORBIGYGLES. NO. 575.006.

Patented Jan. 1.2, 1897.

(-No Modl.) 2 Sheets-'Sheet 2.

W. PENBBRTHY. ADJUSTABLE HANDLE BAR PQR BIGYGLES.

No. 575,006.' Patented Jan. 12, 1897.

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I o 7,@ i?r'f- 7 7 @a LJ? Tlf Tu: Nomus Psvsns co'. noauwo, WASHINGTONDv c UNrrn rares IVILLIAM PENBERTHY, OF DENVER, COLORADO, ASSIGNOR OFONE-HALF TO THOMAS O. JOHNS, OF SAME PLACE.

ADJUSTABLE HANDLE-BAR FOR BICYCLES.

SPECIFICATION forming part of Letters Patent No. 575,006, dated January12, 1897.

i Application led October 18, 1895. Serial No. 566,064. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM PENBERTHSQ a citizen of the United States ofAmerica, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and useful Improvements inAdjustable Handle-Bars for Bicycles; and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it ap-A pertains to make anduse the same, reference being had to the accompanying drawings,and tothe figures of reference marked thereon, which form a part of thisspecification.

My invention relates to improvements in mechanism for adjusting andloekingthe handie-bars of bicycles; and the special object of theinvention is to permit the ready adjust ment of the handle-bars to aposition at right angles to that normally occupied when the bicycle isin use, whereby the wheel may be leaned against an upright wall or otherstationary object and be firmly supported in position, since thehandle-bar forms a brace to prevent the post of the front fork fromturning in the frame.

My further object is to produce a construction of this class whereby thehandle-bar may be locked in any desired position of adjustment.

To these ends my improvement consists of the ,features hereinafterdescribed and claimed, all of which will be fully understood byreference to the accompanying drawings,in which is illustrated anembodiment thereof.

In the drawings, Figure l is an elevation, partly in section, showingthe handle-bar connected with the post of the front fork in accordancewith my invention. Fig. 2 is a similar View of the same shown in anotherposition and locked. Figs. 3, 4i, 5, andG are similar views illustratingmodified forms of construction. Figs. 7 and 8 show a bicycle equippedwith my improvements.

In Fig. 7 the handle-bar is in position for use. In Fig. 8 thehandle-bar is adjusted to support the bicycle when leaned against awall.

Similar reference-characters indicating corresponding parts in theviews, let the numeral 5 designate the handle fast in the male member 6of a friction-clutch. The friction-disk 6 of the clutch is cone-shaped,whereby itis adapted to enter a counterpart socket formed in the femalemember 7 of the clutch, which is made fast to the top of the post S ofthe front fork. As shown in the drawings, the lower extremity 7 n of theclutch member 7 en- -ters the top of the hollow post and is made fasttherein. The two members of the clutch are connected by a bolt 9, passedthrough coinciding apertures formed in the clutch members. The threadedextremity of this bolt projects above the top of the clutch member 6,and is fastened in place by athumb-nut 9. By tightening this nut thefriction between the two members 6 and 7 of the clutch is madesufficient to fasten the handle-bar in any desired position.

The two members of the clutch are provided with apertured arms 6c and7c, made fast on the respective members and apertured to receive a lockl2, which may be applied when the members are properly adjusted-forinstance, when the arms 6c and 7 C are in the position shown at theright in Fig. 2. The hasp of a padlock 12 may be passed through theregistering apertures of the two arms. The handle-bar is then locked inthe position shown in Fig. S and cannot be changed to the position shownin Fig. 7 until the holder of the key opens the lock. The lock may beapplied when the handle-bar is in the position shown in Fig. 7 to insureabsolutely the maintaining of the bar in said position, in case thefriction-clutch alone should not prove adequate to hold the parts withsufficient firmness.

The clutch member 7 should be provided with .three arms 7 C; that is tosay, one on each side and one in the center equidistant from those onthe sides. Only two, however, are shown in the drawings, which isbelieved fully sufficient to illustrate the construction. Hence throughthe instrumentality of the arms `7c and the arm 6C the handle-bars maybe locked to support the wheel when leaned against a wall on either sidethereof, as well as when said. bar is in the position shown in Fig. 7.

In the form of construction shown in Figs..

3 and 4c the two clutch members are connected IOO by a screw D, whosethreaded extremity enters a threaded aperture formed in the part G ofthe clutch member (5. Between the screw-head and the part 7 of theclutch member 7 is located a coil-spring lO. The part 6 is provided witha lug` G, adapted to enter a counterpart recess 7d, formed in the top ofthe member '7. Thisfeature prevents the handle-bar from turning when thepart-s are in the position shown in Fig. 3. The spring l should be ofsufficient strength to prevent the handlebar from being accidentallyraised suihciently to disengage the lug Gd from its recess. lVhen,however, it is desired to turn the handle-bar to the position shown inFigs. 4 and S, a sudden upward pull will compress the spring and raisethe lug out of its recess, when the handle-bar may be turned atpleasure.

In the form shown in Figs. 5 and G the position of the screw 9 isreversed; that is to say, its head is uppermost, and its threadedextremity enters a threaded aperture formed in the member 7 of theclutch. a shallow recess Gg is formed in the top of the member G. Thespring l0 is located between the head of the screw and the bottom of therecess. The part of the spring which protrudes from the recess Uf isconcealed by a In this casev easing 0C, attached tothe screw-head.Otherwise the construction is the same as that shown in Figs. 3 and 4.The position of the handle-bar is reversed in Fig. G and the lock'applied on the side opposite that shown in Fig. 4.

Having thus described myinvention, what I claim is- The combination withthe handle-bar of a bicycle, and the post or shank of the front fork, ofthe two clutch members, one made fast to the handle-bar, and the other'made fast to the said post or shank, one member having a projection, andthe other a counter part socket, means for connecting the clutchmembers, one or more apertured arms attached to each clutch member, andmeans for loekin g the said arms together when the handle-bar is soadjusted as to cause the apertures in one pair of arms to register, saidmeans consisting of a padlock whose hasp is adapted to enter theapertures of said arms, substantially as described.

In testimony whereof I ailix my signature in the presence of twowitnesses.

WILLIAM PENBERTIIY.

Witnesses:

Giras. E. DAWSON, Amann J. OBRIEN.

